diff --git a/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.c b/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.c
index dc1e6aed63..0ca3776045 100644
--- a/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.c
+++ b/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.c
@@ -160,7 +160,7 @@ InstallAllStructures (
     DateStr = (CHAR16 *)FixedPcdGetPtr (PcdFirmwareReleaseDateString);
     DateLen = StrLen (DateStr);
     if (DateLen < 3) {
-      DateStr = L"unknown";
+      DateStr = L"2/2/2022";
       DateLen = StrLen (DateStr);
     }